Rename FFXIV screenshots with ISO 8601 dates

rename-ffxiv-screenshots.ps1

Get-ChildItem "$([Environment]::GetFolderPath("MyDocuments"))\My Games\FINAL FANTASY XIV - A Realm Reborn\screenshots" -Filter "ffxiv_*.png" |
Foreach-Object {
  $_.BaseName -match "ffxiv_(?<day>\d\d)(?<month>\d\d)(?<year>\d\d\d\d)_(?<hour>\d\d)(?<minute>\d\d)(?<second>\d\d)(?<suffix>_[^\.]*)?"
  $m = $Matches
  Rename-Item -Path $_.FullName -NewName "$($m.year)-$($m.month)-$($m.day) $($m.hour)_$($m.minute)_$($m.second) screenshot$($m.suffix).png"
}

Thanks, this is exactly what I was looking for to organize my screenshots.
Some of my screenshots didn't have a "suffix", causing the regex to not match (and try to overwrite the file name with the previous matched parameters). I made the last part optional and it worked well.

Get-ChildItem "$([Environment]::GetFolderPath("MyDocuments"))\My Games\FINAL FANTASY XIV - A Realm Reborn\screenshots" -Filter "ffxiv_*.png" |
Foreach-Object {
  $_.BaseName -match "ffxiv_(?<day>\d\d)(?<month>\d\d)(?<year>\d\d\d\d)_(?<hour>\d\d)(?<minute>\d\d)(?<second>\d\d)(?<suffix>_[^\.]*)?"
  $m = $Matches
  Rename-Item -Path $_.FullName -NewName "$($m.year)-$($m.month)-$($m.day) $($m.hour)_$($m.minute)_$($m.second) screenshot$($m.suffix).png"
}

Some of my screenshots didn't have a "suffix", causing the regex to not match (and try to overwrite the file name with the previous matched parameters). I made the last part optional and it worked well.

It looks like the suffix is supposed to be milliseconds and should be part of the timestamp. I haven't observed instances of it missing, maybe it happens if you manage to take a capture bang-on the second. I'll incorporate your change :-)

Now that my screenshots are properly sorted, it seems that the screenshots from 2015 to 2018 didn't have the "suffix". My screenshots from Jan 2019 have them! Not sure if the change was made in the game client, or something related to a change in my computer/OS.

Square may have added it for people who used PrintScreen for active time events :-D Thanks a lot for the heads up, I only started playing early last year, so I wouldn't have seen it.